ACCUMULATOR 3

ACCUMULATOR

WARNING

The accumulator is charged with high-pressure nitrogen gas, improper operation may cause an explosion which could lead to serious injury or damage. When handling the accumulator, always do as follows:

Pressure in the control circuit cannot be completely removed. When removing the hydraulic equipment, do not stand in the direction that oil spurts out when performing the operation.

Loosen the bolts slowly.

Do not disassemble the accumulator.

Do not bring it near flame or dispose of it in fire.

Do not make holes in it or weld it.

Do not hit it, roll it, or subject it to any impact.

When disposing of the accumulator, the gas must be released. Contact your Komatsu distributor for proper disposal.

This machine is equipped with an accumulator in the control circuit. The accumulator is a device to store oil pressure for the control circuit. Because an accumulator is installed, the control circuit can be actuated for a short time even after the engine is stopped. As a result, if the control lever is moved in the LOWER direction, the work equipment will go down under its own weight. The accumulator is installed to the position shown in the diagram on the right.

Releasing Hydraulic Pressure with Accumulator

1. Place the work equipment on the ground. Close the crusher attachment jaws, etc. 2. Stop the engine. 3. Turn the key in starting switch to the ON position. 4. Move lock lever to the free position. Move the work equipment control lever and attachment control pedal to full strokes back and forth, right and left to release pressure in the control circuit. 5. Move the lock lever to the LOCK position. Lock the control lever and attachment control pedal.